As the number of songs sampling that beat continues to grow, how long will it be before we're sampling the samples? Has it happened already? I can easily imagine someone putting together a track with the drum break from the Beastie Boys' "Rhymin and Stealin" instead of the Led Zep original (knowlingly or unknowingly).

Among true beat-heads, there seems to be an unspoken rule about this: take only from the original, vinyl preferably. There doesn't seem to be the same etiquette in the world of the link. Or rather, while most people make an effort to link to the "original", there seems to be a certain status achieved by being "the first" person to link to something. Think: Metafilter, DailyKos. (Make sure to check those comments for the best in jaded net-folk)